Miklos D.F. Udvardy

National Audubon Society Field Guide to North American Birds: Western Region  Miklos D.F. Udvardy John Farrand Paperback. Alfred A Knopf, 1994-09-01 ISBN 9780679428510     Aud Fld Gd Westn Bird  Miklos D.F. Udvardy Hardcover. Knopf, 1989-04-10 ISBN 9780394214702